If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/leds//leds-netxbig.ko | grep alias
alias: platform:leds-netxbig
After this patch:
$ modinfo drivers/leds//leds-netxbig.ko | grep alias
alias: platform:leds-netxbig
alias: of:N*T*Clacie,netxbig-ledsC*
alias: of:N*T*Clacie,netxbig-leds
Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
---
drivers/leds/leds-netxbig.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
index 4b88b93244be..f48b1aed9b4e 100644
--- a/drivers/leds/leds-netxbig.c
+++ b/drivers/leds/leds-netxbig.c
@@ -534,6 +534,7 @@ static const struct of_device_id of_netxbig_leds_match[] = {
{ .compatible = "lacie,netxbig-leds", },
{},
};
+MODULE_DEVICE_TABLE(of, of_netxbig_leds_match);
#else
static inline int
netxbig_leds_get_of_pdata(struct device *dev,
--
2.7.4
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